Consider the following statements about Newton's law: I. A newton is a fundamental unit. II. Mass and acceleration are inversely related when the force is constant. III. Newton's first law can be derived from Newton's second law. IV. Newton's second law can be derived from the universal law of gravity. Which of the following statements are true?

The Praxis General Science: Content Knowledge (5435) exam is a test required by many states for credential candidates planning to teach science at a high school level. It is a single, computer-delivered test that includes questions from five content domains.

The content categories are Scientific Methodology, Techniques, and History; Physical Science; Life Science; Earth and Space Science; and Science, Technology, and Society.